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| центратор лифтовой колонны; центратор НКТ (MichaelBurov) | |||
| центратор насосно-компрессорной колонны | |||
| центратор насосно-компрессорных труб | |||
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tubing centralizer : 2 phrases in 2 subjects |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
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